Skip to main content

View Post [edit]

Poster: Paul Lindner Date: Feb 18, 2004 12:44pm
Forum: sflan Subject: Varying levels of performance

Hi,

I have a wet11 v2 setup with an external antenna. Connectivity is going well, and I've made some static routes that use the new interface.

There's one problem though, the connection is either very fast or very slow. Good speeds are in the 160Kbps range, whereas bad is 10-20Kbps range.

The signal level does not seem to vary much, 60-70%. The auto-negotiation of the transmit rate seems locked in at 11Mbps.

Is there a traffic log that shows usage of the node? Am I seeing poor throughput due to other clients of the access point? My tests consist of downloading apache2.0.48.tar.Z from www.apache.org, which is in the UnitedLayer data center directly connected with sflan.

Thanks
Paul

Reply [edit]

Poster: Paul Lindner Date: Feb 18, 2004 6:06pm
Forum: sflan Subject: Re: Varying levels of performance

weird. Maybe I just don't know the topology of the sflan, but if I test downloads off movies02.archive.org I get high performance, when I get poor performance from www.apache.org. Traceroutes attached:

traceroute to www.apache.org (209.237.227.195), 30 hops max, 38 byte packets
1 b116-dyn-76.archive.org (209.237.240.76) 21.660 ms 9.064 ms 10.924 ms
2 b116-dyn-78.archive.org (209.237.240.78) 5.807 ms 3.994 ms 5.449 ms
3 209.237.229.241 (209.237.229.241) 4.303 ms 4.855 ms 5.525 ms
4 GE49-ar04-1019m-sfo.unitedlayer.com (209.237.224.22) 3.965 ms 4.318 ms 4.602 ms
5 minotaur-2.apache.org (209.237.227.195) 4.298 ms 3.743 ms 4.698 ms

traceroute to movies02.archive.org (209.237.233.224), 30 hops max, 38 byte packets
1 b116-dyn-76.archive.org (209.237.240.76) 178.365 ms 6.507 ms 7.733 ms
2 b116-dyn-78.archive.org (209.237.240.78) 7.491 ms 5.254 ms 3.704 ms
3 209.237.229.241 (209.237.229.241) 4.188 ms 4.050 ms 3.966 ms
4 GE7-br02-200p-sfo.unitedlayer.com (209.237.224.1) 3.989 ms 4.134 ms 4.261 ms
5 GE02-br01-60fed-sfo.unitedlayer.com (209.237.224.34) 4.473 ms 4.037 ms 4.508 ms
6 GE50-ar01-60fed-sfo.unitedlayer.com (209.237.224.154) 5.205 ms 10.816 ms 5.404 ms
7 209.237.229.130 (209.237.229.130) 4.510 ms 4.417 ms 4.302 ms
8 209.237.229.130 (209.237.229.130) 4.219 ms !<10> 4.270 ms !<10> 5.963 ms !<10>